diff --git a/zshrc b/zshrc
index 56038c0..ed0c6e2 100644
--- a/zshrc
+++ b/zshrc
@@ -224,7 +224,7 @@ __has_command gpg2 && alias gpg=gpg2
 if [ "$(uname -s)" = "Darwin" ]; then
 	export MAKEFLAGS="-j$(($(sysctl -n machdep.cpu.thread_count) * 2))"
 elif [ "$(uname -s)" = "NetBSD" ]; then
-	export MAKEFLAGS="-j$(($(sysctl -n hw.ncpu) * 2))"
+	export MAKEFLAGS="-j$(($(/sbin/sysctl -n hw.ncpu) * 2))"
 elif __has_command nproc; then
 	export MAKEFLAGS="-j$(($(nproc) * 2))"
 fi